T wave alternans refers to the variation of the T wave amplitude on an ECG on a beat-to-beat basis. Having significant T wave alternans is thought to increase the risk of ventricular arrhythmias ...

The goal of the trial was to evaluate microvolt T-wave alternans (MTWA) directed therapy compared with electrophysiological study (EPS) directed therapy in predicting ventricular tachyarrhythmic ...

When every other beat conducts through an accessory pathway causing a short PR interval and a delta wave, the term WPW alternans is used. The accessory pathway that is exists is refractory on an ...